Animals That Are Going Extinct 2025. Without conservation efforts to stop. Habitat loss—driven primarily by human expansion as we develop land for housing, agriculture, and commerce—is the biggest threat facing most animal species, followed by hunting and.

Sometimes it’s because of a dramatic shift in the climate. Habitat loss—driven primarily by human expansion as we develop land for housing, agriculture, and commerce—is the biggest threat facing most animal species, followed by hunting and.